Home / 12,638,419.98-17,440,981.07-6,837,200.39

Finding the Fourth Proportional to 12,638,419.98, 17,440,981.07 and 6,837,200.39

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Solution

The fourth proportional to 12,638,419.98, 17,440,981.07 and 6,837,200.39 is: 9,435,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,638,419.98 : 17,440,981.07 = 6,837,200.39 : x
  2. Step 2: Convert to fraction form
    12,638,419.98/17,440,981.07 = 6,837,200.39/x
  3. Step 3: Cross multiply
    12,638,419.98x = 17,440,981.07 × 6,837,200.39
  4. Step 4: Simplify right side
    12,638,419.98x = 119,247,482,452,395.72
  5. Step 5: Solve for x
    x = 119,247,482,452,395.72/12,638,419.98
  6. Step 6: Final answer
    x = 9,435,315.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.